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So , it is good to password protect a file on computer using a simple notepad trick by using .BAT extension.
- Open Notepad and paste the following program in the notepad.
cls
:End
@ECHO OFF
title Folder Locker
if EXIST �Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}� goto UNLOCK
if NOT EXIST Locker goto MDLOCKER
:CONFIRM
echo Are you sure u want to Lock the folder(Y/N)
set/p �cho=>�
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Locker �Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}�
attrib +h +s �Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}�
echo Folder locked
goto End
:UNLOCK
echo Enter password to Unlock folder
set/p �pass=>�
if NOT %pass%==harsha goto FAIL
attrib -h -s �Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}�
ren �Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}� Locker
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Locker
echo Locker created successfully
goto End
- In the above program I am using harsha as the password of the file.
- Replace it with anything you like to make it as folder password.
- Save the file anywhere in the system with a .bat suffix like something.bat
- Here I am saving it as mylocker.bat on my system.

- Double click on the something.bat file which you create, a new folder by name Locker will be created on the same location of bat file you saved.
- Copy your files to this folder and open bat file again and type y and then enter to lock your folder.

- To unlock your file again, you need to open the bat file and enter your password.